⁴⁰AR/³⁹AR geochronology of biotite from ductile shear zones of the Ellesmere-Devon crystalline terrane, Nunavut, Canadian Arctic
This thesis presents a 40Ar/39Ar geochronological analyses of biotite from thin ductile shear zones in Paleoproterozoic granulite-facies gneisses from the Ellesmere-Devon crystalline terrane, Nunavut, Canada. The gneisses are part of the Paleoproterozoic Thelon tectonic zone. U-Pb dates of zircon sh...
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| Language: | English |
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University of Iowa
2018
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| Online Access: | https://ir.uiowa.edu/etd/6070 https://ir.uiowa.edu/cgi/viewcontent.cgi?article=7763&context=etd |